package com.gu.domain.utils;

import com.gu.domain.entity.Article;
import com.gu.domain.vo.HotArticleVo;
import org.springframework.beans.BeanUtils;

import java.util.List;
import java.util.stream.Collectors;

public class BeanCopyUtils {

    private BeanCopyUtils() {

    }

    public static <V> V copyBean(Object source,Class<V> clazz) {
        //创建目标对象
        V result = null;
        try {
            result = clazz.newInstance();
            //实现属性copy
            BeanUtils.copyProperties(source, result);


        } catch (Exception e) {
            e.printStackTrace();
        }

        //返回结果
        return result;
    }

    public static <O,V> List<V> copyBeanList(List<O> list, Class<V> clazz) {
        return list.stream()
                        .map(o -> copyBean(o, clazz))
                        .collect(Collectors.toList());
    }


    public static void main(String[] args){
        //测试
        Article article = new Article();
        article.setId(1L);
        article.setTitle("test");

        HotArticleVo hotArticleVo = copyBean(article,HotArticleVo.class);
        System.out.println(hotArticleVo);


    }
}
